000 00298nam a2200121Ia 4500
008 230303s9999 xx 000 0 und d
041 _aeng
082 _a005.43 DHA
100 _aDHAMDHERA (D.M.)
245 _aSystems Programming and Operating Systems
260 _aNew Delhi
_bPHI
365 _cRS
999 _c173958
_d173958